Hey guys, I don't know how many of you guys have actually tried both of these, but I'm looking to get a nice tube preamp, and the two I'm most interested in are The Brick and The Robbie. I love the 737...but out of my price range. Infact, so is the Robbie, but I'd scrape it together if it's worth it. Now, I'm aware it's up to my ears, but I wouldn't mind a little guidence. This will be almost exclusively for heavy rock vocals (singing, and screaming). I have an AudioTechnica 4050 as my main vocal mic (sounds great with the singer). I'm pretty much dead set on a tube preamp too. I've used an Avalon M5, and I felt it was too cold for the singer. Any other suggestions are welcome but 1k is my ABSOLUTE limit. Thanks guys!